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Finding the Fourth Proportional to 2,991.94, 4,127.96 and 2,362.57

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Solution

The fourth proportional to 2,991.94, 4,127.96 and 2,362.57 is: 3,259.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,991.94 : 4,127.96 = 2,362.57 : x
  2. Step 2: Convert to fraction form
    2,991.94/4,127.96 = 2,362.57/x
  3. Step 3: Cross multiply
    2,991.94x = 4,127.96 × 2,362.57
  4. Step 4: Simplify right side
    2,991.94x = 9,752,590.04
  5. Step 5: Solve for x
    x = 9,752,590.04/2,991.94
  6. Step 6: Final answer
    x = 3,259.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.